Improvement in cultivators



H. H. PATTEE.

CULTIVATOR. No.187,899. Patented Feb. 27, 1877.

2 92 z 'yi m 6% 2% EH UNITED STATES PATENT QFFICE.

HENRY HJPATTEE, OF MONMOUTH, ILLINOIS, ASSIGNOR OF TWO-THIRDS OF HISRIGHT TO JAMES H. PATTEE .AND ITHAMAR P. PILLSBURY, OF

SAME PLACE.

IMPROVEMENT IN CULTIVATORS.

Specification forming part of Letters Patent No. 187,899, dated February27, 1877 application filed December 5, 1876.

To all whom it may concern:

Be it known that I, HENRY H. PATTEE, of Monmouth, in the county ofWarren and State of Illinois, have invented certain new and usefulImprovements in Cultivators; and I do hereby declarethat the followingis a full, clear, and exact description thereof, which will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawing, and to letters ofreference marked thereon, which form a part of this specification.

The nature of my invention relates to a new and improved mode ofconstructing the arch or central and main part of straddle-rowcultivator-beam yokes or axles, and of connecting the side partsthereto; and the invention consists in constructing said arch of curvedadjacent bars of iron or steel, to the ends of which maybe attached, byriveting, the cast-iron parts for securing thereto the plows and wheels,and which may be strengthened by the use of stiffening-bolts, all ashereinafter more fully described.

The accompanying drawing represents, by different views, a cultivatorbeam yoke or axle embodying my improvements, Figure 1 being a top viewof the axle; Fig. 2, an elevation showing the axle mounted on wheels;Fig. 3, a perspective view; Fig. 4, a sectional view in the line w :10,Fig. 2. Figs. 6, 6, 7, 8, and 9 are detail sectional views ofmodifications, hereinafter referred to.

Referring to the parts by letters, the same part being represented bythe same letter in the diflerent views, A represents the arched centralportion of a cultivator axle or beam yoke, formed of two similar bars, aa, of wroughtiron or (preferably) Bessemer steel, each bar of oblongrectangular form, or some similar form, in its cross-section, and eachbar bent or curved edgewise, as plainly shown in the drawings, to formthe arch A, when the two are placed adjacent to each other. B Brepresent the plates which carry the journals 0 O, to which the plowsare attached; and D represents the plate carrying the wheel E, and bywhich said Wheel is pivoted to the plate D in a common and well-knownclass of cultivators.

The plates B are so formed that they may be placed between the ends ofthe bars a a, and be securely riveted or bolted therein by bolts 1) b.

It will be plainly seen that the foregoing described construction of thearch A, especially when made of Bessemer steel, will produce a stiff,strong, rigid arch without the weight required to produce an arch of asingle bar having the necessary rigidity and strength to resist thevarious strains, and especially the torsional strain to which it issubjected in use.

As a further means of stiffening the arch A a bolt, F, may be used forconnecting the bars a a at their upper midlength portions, and otherbolts F may be used at other points of the arch, if deemed necessary.

Figs. 5, 6, 7, 8, and 9 are modifications of the form which the bars amay have in their cross-sections.

In wheel-cultivator axles, the necessary rise of the arch and width ofspan give considerable length to the bars of which the arch is formed,and necessitate great strength in the arch to resist the variousstrains, and especially the torsional strain hereinbet'ore referred to.The construction of elevated wide arch or axle of two nearly parallelbars, as herein described, it is found, oifers great resistance totorsional strain, and especially adapts the construction to this use intongueless cultivators.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

The arched axle or beam yoke A of a straddle row cultivator,constructed, as described, of similarly-curved bars a a of iron orsteel, arranged side by side in close proximity, and parallel, or nearlyso, and having the side plates B B secured to and between the curvedbars a a, in manner substantially as and for the purpose specified.

In testimony that I claim the foregoing as my own I affix my signaturein presence of two witnesses.

HENRY H. PATTEE.

Witnesses G. F. DAVIDSON, W. A. DRYDEN.

